[INFO] fetching crate libuptest 0.1.2...
[INFO] testing libuptest-0.1.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate libuptest 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libuptest 0.1.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate libuptest 0.1.2
[INFO] finished tweaking crates.io crate libuptest 0.1.2
[INFO] tweaked toml for crates.io crate libuptest 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3dde176451767835a8227c559de8bef87e7d38ad404d23d0220ba73bbcf7cde
[INFO] running `Command { std: "docker" "start" "-a" "d3dde176451767835a8227c559de8bef87e7d38ad404d23d0220ba73bbcf7cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3dde176451767835a8227c559de8bef87e7d38ad404d23d0220ba73bbcf7cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dde176451767835a8227c559de8bef87e7d38ad404d23d0220ba73bbcf7cde", kill_on_drop: false }`
[INFO] [stdout] d3dde176451767835a8227c559de8bef87e7d38ad404d23d0220ba73bbcf7cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab39c6a685e8f3ef3dce5fb164d315ecb4587bb75dcca811483ef6b43e1192ad
[INFO] running `Command { std: "docker" "start" "-a" "ab39c6a685e8f3ef3dce5fb164d315ecb4587bb75dcca811483ef6b43e1192ad", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libuptest v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `event_summary` should have an upper camel case name
[INFO] [stdout]   --> src/types.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct event_summary {
[INFO] [stdout]    |            ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EventSummary`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `storage_types` should have an upper camel case name
[INFO] [stdout]   --> src/types.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum storage_types {
[INFO] [stdout]    |          ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StorageTypes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `storage_value` should have an upper camel case name
[INFO] [stdout]   --> src/types.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct storage_value {
[INFO] [stdout]    |            ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StorageValue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `pallet_storage_types` should have an upper camel case name
[INFO] [stdout]   --> src/types.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct pallet_storage_types {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PalletStorageTypes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `justifications` should have an upper camel case name
[INFO] [stdout]    --> src/types.rs:193:12
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub struct justifications(Vec<u8>);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `Justifications`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `generic_block` should have an upper camel case name
[INFO] [stdout]    --> src/types.rs:204:10
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub type generic_block = Block<Header, Vec<String>>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GenericBlock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::jsonrpseeclient::subscription::HandleSubscription`
[INFO] [stdout]   --> src/ws_mod.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use crate::jsonrpseeclient::subscription::HandleSubscription;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::jsonrpseeclient::subscription::Subscribe`
[INFO] [stdout]   --> src/ws_mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use crate::jsonrpseeclient::subscription::Subscribe;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::jsonrpseeclient::SubscriptionWrapper`
[INFO] [stdout]   --> src/ws_mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use crate::jsonrpseeclient::SubscriptionWrapper;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Header`, `event_summary`
[INFO] [stdout]   --> src/ws_mod.rs:27:20
[INFO] [stdout]    |
[INFO] [stdout] 27 | use crate::types::{event_summary, Header, RuntimeVersion};
[INFO] [stdout]    |                    ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]   --> src/test_helper.rs:2:17
[INFO] [stdout]    |
[INFO] [stdout] 2  | use rand::{Rng, SeedableRng}; // https://rust-random.github.io/book/guide-rngs.html
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub mod test_helper;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(error_in_core)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libuptest` (lib) due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ab39c6a685e8f3ef3dce5fb164d315ecb4587bb75dcca811483ef6b43e1192ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab39c6a685e8f3ef3dce5fb164d315ecb4587bb75dcca811483ef6b43e1192ad", kill_on_drop: false }`
[INFO] [stdout] ab39c6a685e8f3ef3dce5fb164d315ecb4587bb75dcca811483ef6b43e1192ad
